There are six islands in the group known as Phi Phi. They lie 50 km south-east of Phuket and are part of Hadnopparattara-Koh Phi Phi National Park which is home to an abundance of corals and marine life. There are limestone mountains with cliffs, caves and long white sandy beaches. The national park covers a total area of 242,437 Rai.Phi Phi Don and Phi Phi Le are the largest and most well-known islands. Phi Phi Don is 28 sqkm: 8 km in length and 3.5 km wide. Phi Phi Le is 6.6 km